140740320 has 96 divisors (see below), whose sum is σ = 506677248. Its totient is φ = 32168448.

The previous prime is 140740309. The next prime is 140740321. The reversal of 140740320 is 23047041.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140740321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17584 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (5277888).

Almost surely, 2^140740320 is an apocalyptic number.

140740320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140740320 is an abundant number, since it is smaller than the sum of its proper divisors (365936928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140740320 is a wasteful number, since it uses less digits than its factorization.

140740320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41912 (or 41904 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 140740320 is about 11863.4025473302. The cubic root of 140740320 is about 520.1630652303.

Adding to 140740320 its reverse (23047041), we get a palindrome (163787361).

The spelling of 140740320 in words is "one hundred forty million, seven hundred forty thousand, three hundred twenty".